I\'m trying to figure out how to convert a file\'s (or directory\'s) byte size into kilobytes, megabytes, gigabytes, etc... respectively according the file\'s or directory\'s si
You're probably not measuring a resource fork. You'll need to use the Core Services File Manager both to iterate the directories and to measure the sizes of files. Unlike NSFileManager, the File Manager will tell you the size of the resource fork.